Click on the link to look at the questions you need to prepare for tomorrow Chem 2.4 Questions 12 Click here for some information about electronegativity Click here for the essential points when discussing polar and non polar molecules
Look through the presentation on diamond and graphite before tackling the question based on one in the 2011 paper. This question is based on the 2011 paper.
The structurfe of quartz Silicon and oxygen atoms are arranged in a three dimensional covalent network. A portion of such a framework is shown here. In this arrangement, the stoichiometry is reduced to SiO2, (each silicon has a half share of four oxygens) which is often called silica. A collection of small pieces of quartz is sand. […]
Watch the presentation carefully including the video then attempt the questions below. There will be a tutorial this Friday morning between 7.30 and 8.30 if you want more help.
Try these questions to predict whether a molecule is polar or non polar.